Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 21

Waxing Gibbous 79%

16:11

01:28

01 Bad
02 Bad
03 Bad
04 OK
05 OK
06 OK
07 OK
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Good
23 Good
00 Good

Sun - Rise: 07:38, Set: 17:51, Transit: 12:44. Moon - Rise: 16:11, Set: 01:28. Civil Dark: 18:26 - 07:02. Nautical Dark: 19:06 - 06:22. Astro Dark: 19:46 - 05:42

Total Clouds (% Sky Obscured)

100
99
100
30
22
19
20
51
93
95
100
100
100
100
92
100
96
100
100
94
94
10
3
5

Low Clouds (% Sky Obscured)

100
65
50
15
19
17
20
24
40
93
94
100
95
90
82
99
93
96
87
65
36
1
1
0

Medium Clouds (% Sky Obscured)

55
99
56
19
5
0
0
40
83
91
100
100
100
100
74
74
91
72
68
87
90
7
0
4

High Clouds (% Sky Obscured)

0
3
0
0
0
3
0
7
54
50
100
100
100
53
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
3
1
2
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
Very Light Rain
None
None
None
None
None
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
Light Rain
Light Rain
None
None
None
None
None

Precipitation Probability (%)

34
66
53
2
1
0
0
1
6
27
91
95
95
95
89
42
44
95
78
43
12
1
0
0

Precipitation Amount (mm)

0
0.2
0
0
0
0
0
0
0
0
0.6
2.4
1.6
1.2
0.5
0
0
1
0.5
0
0
0
0
0

Wind Speed/Direction (mph)

9
8
12
10
9
9
8
9
10
11
12
11
8
16
17
17
21
25
23
23
21
20
18
15

Chance of Frost

Temperature (°C)

11
11
11
10
9
8
8
8
9
11
11
12
11
11
10
10
9
9
8
8
8
8
7
7

Feels Like (°C)

9
7
7
7
8
7
7
7
7
7
8
8
9
6
4
4
2
2
2
1
2
1
2
3

Dew Point (°C)

10
10
8
8
8
7
6
7
7
8
9
9
10
9
8
8
7
7
6
4
4
3
3
3

Relative Humidity (%)

91
91
84
87
91
90
88
88
84
83
84
81
90
90
90
87
84
85
85
74
73
73
74
78

Pressure (mb)

1001
1001
1000
1000
1000
999
999
999
998
998
998
997
996
996
997
998
998
999
1000
1002
1003
1004
1004
1005

Ozone (du)

307
309
316
311
300
300
303
305
303
301
304
305
307
308
313
317
316
315
315
312
310
310
314
315

Thursday 22

Waxing Gibbous 87%

16:22

02:46

01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 OK
10 Bad
11 OK
12 OK
13 OK
14 Bad
15 Bad
16 OK
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:40, Set: 17:48, Transit: 12:44. Moon - Rise: 16:22, Set: 02:46. Civil Dark: 18:24 - 07:04. Nautical Dark: 19:04 - 06:24. Astro Dark: 19:44 - 05:44

Total Clouds (% Sky Obscured)

60
55
81
91
91
89
81
65
33
45
30
40
28
48
53
36
81
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
38
62
77
41
82
76
64
33
45
30
40
25
24
30
26
19
20
4
29
88
84
88
91

Medium Clouds (% Sky Obscured)

45
45
74
87
86
21
9
0
0
0
0
0
0
0
0
0
21
94
100
90
98
100
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
8
43
43
8
73
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
3
8
7

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Light Rain
Very Light Rain
Light Rain

Precipitation Probability (%)

4
41
95
50
5
1
1
0
0
0
0
0
0
0
0
0
0
0
2
26
73
95
75
95

Precipitation Amount (mm)

0
0
1.3
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
1.2
0.3
0.7

Wind Speed/Direction (mph)

14
11
10
10
8
7
6
6
7
10
10
11
12
12
10
9
7
6
7
10
12
13
16
17

Chance of Frost

Temperature (°C)

6
6
6
6
7
7
7
6
7
8
10
11
12
12
13
13
12
10
10
10
10
10
11
11

Feels Like (°C)

3
3
3
3
3
3
4
3
4
6
7
8
9
9
8
10
10
7
7
7
6
7
6
7

Dew Point (°C)

3
4
4
5
6
6
5
5
6
5
4
4
4
5
5
6
6
6
5
6
6
8
10
10

Relative Humidity (%)

81
86
88
91
93
93
88
91
91
79
68
61
58
59
59
64
68
73
74
77
77
85
93
93

Pressure (mb)

1005
1005
1005
1005
1005
1006
1006
1007
1008
1008
1009
1009
1009
1009
1009
1009
1009
1008
1008
1007
1006
1005
1003
1001

Ozone (du)

316
314
314
316
318
321
321
320
315
317
315
311
307
305
303
298
295
292
292
292
292
293
295
294

Friday 23

Waxing Gibbous 94%

16:32

04:05

01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:41, Set: 17:46, Transit: 12:44. Moon - Rise: 16:32, Set: 04:05. Civil Dark: 18:22 - 07:06. Nautical Dark: 19:02 - 06:26. Astro Dark: 19:42 - 05:46

Total Clouds (% Sky Obscured)

100
100
100
100
74
100
67
69
81
87
100
100
100
99
98
90
94
100
91
83
76
76
74
73

Low Clouds (% Sky Obscured)

93
91
86
81
40
89
67
69
81
82
100
100
100
99
93
90
86
78
77
66
54
50
49
46

Medium Clouds (% Sky Obscured)

100
100
100
95
20
11
67
69
65
71
80
92
100
99
97
88
92
90
85
79
73
71
72
48

High Clouds (% Sky Obscured)

100
100
100
100
74
100
30
30
35
40
50
61
98
60
60
60
45
92
62
53
12
3
15
2

ISS Passover

Visibility (miles)

5
4
3
8
9
9
9
9
9
2
6
9
9
5
3
3
4
9
9
9
9
7
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Light Rain
Light Rain
Light Rain
None
None
None
None
None
Light Rain
Light Rain
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
41
11
31
44
36
86
89
54
53
84
95
95
95
80
48
42
36
45
44
20
11

Precipitation Amount (mm)

1.5
2.2
0.6
0
0
0
0
0
0.8
0.8
0
0
0.4
1.2
1.6
1
0.4
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

19
21
25
23
23
23
24
25
26
26
23
20
24
26
26
27
27
29
27
27
27
26
25
24

Chance of Frost

Temperature (°C)

12
12
12
12
12
12
12
11
11
11
11
11
11
10
10
10
10
9
9
9
8
8
8
8

Feels Like (°C)

7
7
6
7
7
8
6
5
5
4
5
8
5
2
2
2
2
1
0
0
-2
-1
0
0

Dew Point (°C)

11
11
11
10
9
9
8
8
8
9
9
9
9
9
8
8
7
7
7
6
5
5
4
4

Relative Humidity (%)

93
90
90
86
81
83
76
80
79
87
88
88
90
88
88
85
83
84
84
82
79
78
75
75

Pressure (mb)

999
997
995
993
992
990
989
988
986
985
984
984
985
986
987
989
990
992
994
995
997
998
999
999

Ozone (du)

295
297
300
304
309
312
309
307
307
307
308
310
312
310
308
311
311
311
312
315
320
324
328
332

Saturday 24

Waxing Gibbous 98%

16:43

05:26

01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:43, Set: 17:44, Transit: 12:44. Moon - Rise: 16:43, Set: 05:26. Civil Dark: 18:20 - 07:08. Nautical Dark: 19:00 - 06:27. Astro Dark: 19:40 - 05:48

Total Clouds (% Sky Obscured)

70
65
59
57
52
50
62
66
88
70
75
77
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

45
42
45
45
43
47
35
32
8
11
17
21
32
46
59
60
86
80
97
98
100
95
89
83

Medium Clouds (% Sky Obscured)

66
65
59
4
52
4
0
0
0
7
15
22
31
58
93
94
94
96
95
94
87
83
77
69

High Clouds (% Sky Obscured)

37
39
1
0
0
0
41
39
83
56
59
65
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
4
4
5

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

4
29
33
24
11
5
1
0
0
0
0
0
5
13
21
31
40
49
58
69
82
95
95
88

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.5
1
0.9
0.5

Wind Speed/Direction (mph)

23
22
23
22
22
20
20
19
18
18
17
17
17
16
15
15
15
17
18
17
18
20
21
21

Chance of Frost

Temperature (°C)

8
8
8
8
8
8
8
8
8
9
10
10
11
11
11
10
10
10
10
10
11
11
12
13

Feels Like (°C)

0
1
0
-0
-0
1
1
1
2
2
5
6
7
6
5
6
6
6
5
6
5
5
6
6

Dew Point (°C)

4
5
4
4
4
2
2
1
1
2
3
4
4
5
5
5
5
6
6
8
9
10
10
11

Relative Humidity (%)

75
78
78
78
75
69
65
64
63
61
62
62
59
64
67
67
71
74
77
83
88
90
90
92

Pressure (mb)

1000
1001
1002
1003
1004
1005
1006
1006
1007
1008
1008
1008
1008
1007
1006
1005
1004
1003
1002
1000
999
997
995
994

Ozone (du)

333
333
333
333
329
326
319
316
314
313
312
312
311
308
306
304
299
295
291
291
290
289
288
287

Sunday 25

Waxing Gibbous 100%

15:56

05:51

01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 OK
10 Bad
11 Bad
12 Bad
13 OK
14 OK
15 OK
16 Good
17 Good
18 OK
19 OK
20 OK
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 06:45, Set: 16:42, Transit: 11:44. Moon - Rise: 15:56, Set: 05:51. Civil Dark: 17:18 - 06:10. Nautical Dark: 17:58 - 05:29. Astro Dark: 18:38 - 04:49

Total Clouds (% Sky Obscured)

78
35
35
49
57
61
58
59
25
61
41
37
27
14
12
10
9
21
29
43
46
49
52
68

Low Clouds (% Sky Obscured)

72
35
35
49
57
61
58
59
21
61
34
27
18
12
11
10
6
4
3
1
4
5
7
15

Medium Clouds (% Sky Obscured)

64
35
35
49
57
61
4
59
0
0
0
0
0
0
0
0
0
2
2
4
5
7
5
6

High Clouds (% Sky Obscured)

77
35
35
49
50
60
0
0
0
0
0
0
0
0
0
0
0
8
17
20
18
26
38
61

ISS Passover

Visibility (miles)

8
9
9
9
9
9
7
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Light Rain
Light Rain
None
None
None
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
85
53
49
43
63
55
4
0
0
2
6
3
0
5
2
0
1
3
0
0
0
0
10

Precipitation Amount (mm)

0.7
0.4
0
0
0
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

20
17
16
17
18
19
25
22
23
24
25
27
26
24
22
20
18
17
16
15
15
14
13
13

Chance of Frost

Temperature (°C)

13
12
12
12
12
12
12
11
11
11
12
12
12
12
12
11
11
10
9
9
8
8
8
8

Feels Like (°C)

8
8
9
9
9
8
6
4
3
5
5
5
6
6
6
5
6
6
3
3
4
3
3
4

Dew Point (°C)

12
12
11
11
11
11
10
7
5
6
6
6
6
6
5
5
4
4
4
4
3
3
4
4

Relative Humidity (%)

92
96
96
92
90
89
86
75
68
68
68
65
64
63
61
63
65
67
68
69
70
70
73
75

Pressure (mb)

992
992
992
991
992
992
993
995
997
998
999
1000
1001
1003
1004
1005
1006
1008
1008
1009
1010
1010
1010
1010

Ozone (du)

284
282
281
282
280
281
284
289
298
301
303
313
309
306
302
299
295
291
288
285
282
281
280
278

Monday 26

Full Moon 99%

16:13

07:21

01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 06:47, Set: 16:40, Transit: 11:43. Moon - Rise: 16:13, Set: 07:21. Civil Dark: 17:16 - 06:11. Nautical Dark: 17:56 - 05:31. Astro Dark: 18:36 - 04:51

Total Clouds (% Sky Obscured)

84
100
99
98
97
98
99
100
98
96
94
96
98
100
92
83
75
65
55
47
45
45
41
56

Low Clouds (% Sky Obscured)

17
20
22
26
30
49
61
77
83
90
94
94
92
83
76
74
73
62
52
42
39
38
35
45

Medium Clouds (% Sky Obscured)

6
12
38
65
92
94
95
95
83
70
60
60
61
64
45
21
0
0
0
0
0
0
0
1

High Clouds (% Sky Obscured)

79
100
96
93
90
79
67
55
61
73
86
74
59
50
33
17
0
0
0
0
2
3
5
5

ISS Passover

Visibility (miles)

9
9
9
9
9
9
8
7
5
5
4
4
6
7
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

22
36
89
95
95
95
81
48
68
83
95
89
74
54
46
48
34
16
4
0
1
1
0
12

Precipitation Amount (mm)

0
0
0.5
1.1
1.5
0.9
0.5
0
0.4
0.5
0.7
0.6
0.4
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

13
12
13
14
16
18
17
16
15
17
20
22
21
21
21
20
20
20
20
20
20
21
22
24

Chance of Frost

Temperature (°C)

8
8
8
8
9
9
10
10
11
11
12
13
14
14
15
15
15
15
14
14
13
13
13
12

Feels Like (°C)

3
4
4
5
5
5
5
6
7
7
7
8
9
9
8
8
8
7
11
11
10
9
9
7

Dew Point (°C)

4
4
4
5
5
6
7
8
9
10
11
12
12
13
13
13
12
12
11
11
11
10
10
10

Relative Humidity (%)

75
77
77
78
80
81
82
84
85
88
90
93
92
90
87
86
83
80
83
84
86
86
84
83

Pressure (mb)

1010
1009
1009
1008
1007
1006
1005
1005
1004
1003
1003
1002
1001
1000
1000
1000
1000
1000
1000
1000
1001
1000
1000
1000

Ozone (du)

277
275
273
271
269
267
265
264
263
263
263
263
264
265
266
267
269
270
270
271
271
271
271
271

Tuesday 27

Waning Gibbous 98%

16:38

08:54

Sun - Rise: 06:49, Set: 16:38, Transit: 11:43. Moon - Rise: 16:38, Set: 08:54. Civil Dark: 17:14 - 06:13. Nautical Dark: 17:54 - 05:33. Astro Dark: 18:34 - 04:53

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Boston, Lincolnshire, United Kingdom (52.98,-0.02)

Generated: 21/10/26 01:19:09. Forecast: 21/10/26 to 27/10/26. Timezone: UTC+1.00